Oxyacetylene-torch.



P. F. WILLIS.

OXYAOBTYLENB TORCH. APPLIOA'TION FILED 00T.6,1911.

1,039,238. Patented Sept. 24, 1912.

Witnessea:

4ZZ$W PRIOR F. WILLIS, OF ST. LOUIS, MISSOURI.

OXYAGETYLENETORCH.

Specification of Letters Patent.

Patented Sept. 24, 1912.

Application filed October 6, 1911. Serial No. 653,162.

To all whom it may concern Be it known that I, PRIOR F. \Vnlus, a citizen of the United States, and a resident of the city of St. Louis and State of M ssouri, have invented a new and useful linprovement in' Oxyacetylene-Torches, of which the following is a specification.

This invention relates to burner torches and more particularly to oxy-acetylene welding torches.

It has for its principal objects to .avoid leakage and secure a positive and uniform mixture of acetylene gas and oxygen, to minimize the number of parts and fittings,- and to attain certain other advantages hereinafter more fully appearing.

In the operation of oxy-acetylene torches it is essential that a thorough and positive mixture of the oxygen and acetylene gas be obtained continuously in a uniform proportion, but in many of the devices now in general use, owing to the multiplicity of interfit-ting screw-threaded parts, the mixture varies, due toleaking joints caused by an unequal expansion of the parts when the nozzle 'or head becomes heated.

My invention, therefore, consists primarily in a nozzle or head in which the mixing chambers and passageways are contained in an integral structure, rather than in a number of coiiperating assembled membars.

The invention further consists in the parts and in the arrangements and combinations of parts hereinafter described and claimed.

In the accompanying drawing which forms part of this specification and wherein like symbols refer to like parts wherever they occur,-Figure 1 is a section through a nozzle head made in accordance with my invention; Fig. 2 is a side elevation; Fig. 3 is a top plan view; Fig. 4 is a horizontal section on the line 44 of Fig. 1; Fig. 5

is a vertical section showing a modification of the nozzle head; Fig. 6.-is a face view of the perforated disk for securing the supply pipes to the nozzle head shown in Fig. 5; and Fig. 7 is a view of the securing nut which cooperates with the perforated disk.

Referring nowmore particularly to Figs. 1 to 4, inclusive, the nozzle head 1 comprises a casting or integral member which is cored to provide a spherical chamber 2 in the middle of which is a spheroid 3, the. latter being connected to the body of the head by diametrically opposite necks i, so that said chamber 2 may also be defined as annular or circular. The middle portion of the nozzle head which contains the chamber 2. is enlarged and globular while the nozzle portion 5 is reduced or tapered. In the end of the nozzle portion 5 is secured a nozzle tip .6 of a metal or material that will withstand the intense heat and not fuse with metal being welded. This tip 6 has a screwthreaded shank portion 7 which is fitted tight into a screw-threaded bore in the nozzle portion 5, and a tapered shoulder 8 which fits in a counterpart seat in the end of the nozzle portion. Both the shoulder 8 and seat are ground so as to secure a tight joint. The tip 6 is provided with a drill hole '9 which is alincd axially with a drill hole 10 in the body portion of the nozzle head. The upper portion 11 of the drill hole 10 which lies just above the center of the spheroid 3 and extends through the upper connecting neck 4. is of considerably smaller diameter than the lower portion, while the p0rtion'12 above the portion 11 is considerably larger. The larger bore 12 is provided as a receiving chamber and, also to facilitate drilling the small bore 11.. The bore 10 may be conveniently drilled through the bore in which the tip 6 is fitted. The upper end portion of the nozzle head is bored to a still larger diameter and screwthreaded to receive a screw-plug 13. This screw-plug is provided with a beveled should0' 14- which is ground to make a tight joint with a counterpart seat provided in the end of the nozzle head. Extending later ally from the nozzle head at an angle, as shown, or at any other desirable angle, depending upon the manner in which the torch is to be handled, is a cylindrical lug or extension 15 which is provided with an axial bore 16 communicating at its inner end with the bore 12. A second extension 17 is provided with a bore 18 which communicates at its inner end with the spherical chamber 2. Each of these extensions 15, 17, is provided with a seat in its end to receive a counterpart end face of enlargements or collars 1t) and 20 on the ends of supply pipes 91 and .22, respectively. The pipe 21 is the oxygen pipe and the pipe '22 is the acetylene gas pipe, each being, in practice, connected at their outer ends to flexible tubing (not shown), which in turn communicates with the respective sources of supply. The spheroid 3 in the middle of the spherical cham- 'iier 2 is provicied with cross 1 u. which mterseothe 623111 soies 3O head is .casi.

One of the cross passages 23 is drilled i.. axial. almemsnt with she soeiyiene gas passage 18 1B. the extension 1? Willie the other cross passage may be drilled thsough an opening in the snie of the nozeie head. Tins opening is oiiginaiiy provided is e2 core which forms the chamber And by screwhr opening and fiiting esorewpiug therein is may be uciiized in cleaning the 2 anti cross passages by F smiling the plug as requii'eci. The plug 2 3'; is provide-5i with a,- ground shoulder Silzliizf "10 iiios e As the 3131 parts for verying the reieiive sizes the passageways en'i'mixins ohembes for difitei'ent Work. Eaoii heed, therefore, is made for s psedetermizieci mixture snci pres sure snd the extensions and 17 {H'Q inecie to a, given stsnoiemi so as to be interchange ably fitted to the supply pipes 21 and 25 re speotively. By making the groom? joints between the heads 19 and 20 and seeis in the ends of the exnensions l5 and 17, nuts 26 are all that are required to hoid the joints tight In Fig. 5 the nozzle head is modified. I

this construction, the separate tip 6 pensed with and the nozzle portion 5 is tapered and rounded; at its end. So, too, in.-

steaci of providing sepsis-ts extensions lrl and 17, a single his; or boss 27 is provided on the nozzle head This boss 2? has two passageways 16 and 18 which cosimiuni cats at their inner ends with the upper bore 12 spherical chamber 2, respeosiveiyi in th s case, e d1sk'28 is provided with perforations 29 so that it may be sii 'peci over the supply pipes 2i and a single not 30 having an in'mi'necl annular shoulder 31 is threaded onto the boss 27 so as so clamp the disk 28 tight egsinstt'oe heads 19 and 20 on the ends of she sespeotive suppiy pipes;

Obviously, any other suitabie means for detsohabiy connecting the nozzle heads and making them interchangeable with respect to the'supply pipes may be substituted in lieu of the devices shown, and the entire torch admits of considerable modification Without departing from m invention.

Therefore, I do not Wish to 'e iimited to the s ecifio construction and eiisn 'ement shown is dis rising s- '1 w A 1 mo nozzle em zgnom osss v noszie acetylene I! s y sou g 0: oommuuioesmg with v L l giiwiiiy 'gilofifiu and nozzle exiensiofi iiitegiei snioiighout said passageways and iiuots.

3a A Home? ilfiaii for 01:37 seeiyiene boiroiies comprising s be 3. having an iniegrei nozzle extension seiol body heviiig nannies chamber eiiteii-riitog s boui its longiaxis, e transverse passageway eze 3 F rough the portion of the body seici chemise and com eating as 111s "with O l-11111561, s havcounteri ping, en communicating at its is said areasyerse passageway e16 w is axial bore,

iiiiicaiiiig esyieneges miisi oh mber r ieseiei opening sdsptei to oomiminies'te was said annular simm- I oer and closed by a, removable plug, said -nozz'ie exiension having en exiei passage- Wsy-iherethrough extending into said body and communicating with ssi tisnsverse passageway,

in osy-ece zyiene ioi'eii, burner head pi-ovisieii with en porties the es sass 1G9 b said siensverse say said.

said globular portion having a central annular chamber extending around the axis thereof, a lon itudinal outlet passageway extending axially through the nozzle portion and into the globular portion, a transverse passageway communicating with the inner end of said outlet passageway and communicating at its opposite ends with said annular chamber, said burner head also having a restricted axial passageway in llne with said .outlet passageway and communicating at its end with said transverse passageway, said burner head also having an acetylene gas passageway communicating 15 with said annular chamber and an oxygen passageway communicating with said restricted assa eway.

Signe at t. Louis, Missouri, this 3rd day of October, 1911.

PRIOR. F. WILLIS. Witnesses:

G. A. PENNINGTON,

PAULINE AMBERG. 

